%a{:href => '/teaching/formulaic-expressions'}= 'Introduction'
%a{:href => '/teaching/formulaic-expressions/functions-a'}= 'Exercise: Functions A'
%a{:href => '/teaching/formulaic-expressions/functions-b'}= 'Exercise: Functions B'
%a{:href => '/teaching/formulaic-expressions/listening-a'}= 'Exercise: Listening A'
%a{:href => '/teaching/formulaic-expressions/listening-b'}= 'Exercise: Listening B'